Floor and ceiling.



No. 772,372. PATENTED OCT. 18, 1904.

A. PRoBsT.'

'FLOOR AND CEILING.

APPLICATION FILED FEB. 23. 1904.

N0 MODEL.

l '0L c d/ I M c af vzz-' MI Il UNITED STATES Patented October 18, 1964.

PATENT OFFICE.

FLOOR AND CEILING.

SPECIFICATION forming` part of Letters Patent No. 772,372, dated. October 18, 1904.

i Application led February 23, 1904. Serial No. 194,838. Y(No model.)

To all whom it may concern.'

Beit known that I, ADoLF IRos'r, manufacturer, a subject of the King of VVrternberg, residing at Hessenthal, near Hall, in the Kingdom of Wrtemberg, Germany, have invented certain new and useful Improvements in Floors and Ceilings; and I do hereby declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The obj ect of the present application consists of an improved wood beam iiooring or ceiling-possessing the same advantages as oors or ceilings of hollow-stone slabs-namely, that it is dry, forms great protection against fire, is a bad conductor of sound and of heat, and can be rapidly constructed, while obviating the drawbacks of the aforesaid hollow-stone oors, which are principally that the slabs have too small a bearing capacity to be able to serve as protective supports 'and that the nailing at the nail-holes often causesthe splitting of the said slabs. These drawbacksl are obviatedV in the present invention by securing cross-beams in any suitable manner to the under side of the supporting Hoor-beams and arranging the hollow slabs in the spaces between the Hoor-beams and resting upon the cross-beams. In consequence of the support by means of the cross-beams the slabs can be provided with particularly large hollow spaces, which reduces the quantity of material required and increases their resistance to sound.

In Figures 1 to 4 two constructional modiiications of a flooring of this kind are illustrated, and Fig. 5 shows a detail thereof.

In thedrawings, a @denote the floor-beams, to the lower sides of which are secured the cross-beams Z) b, consisting either of wood planks or of angle-irons lined with wood in the well-known manner. The latter support the ceiling-slabs c c, which are arranged between the beams and provided with hollow spaces to diminish the weightV and the lower edges of which are provided with grooves Z for the reception of the cross-beams. The latter lie with their lower sides in the same plane as the lower sides of the ceiling-slabs c in such a manner that the lathing or the like which supports the plastering or other finishing-surface can be attached immediately to the crossbeams. In addition the cross-beams serve also as closing-pieces for the apertures between the separate slabs, which spaces can be filled with liquid cement or the like.

Fig. 3 shows aview from above of one mode of construction. In this the ceiling-stones c c are escalloped or provided on their longer side with wave shaped y projections, already well-known in connection with ceiling-slabs, or theyare provided with projections or the like which engage in the interstices of the projections of the adjacent slabs. This arrangement has for its object to assist the crossbeams Z) in supporting the ceiling-slabs by means of a wire e, as shown in Figs. 4 and 5, which wire is carried along the medial line of the cross-beam Z1 and Xed in any convenient manner to the cross-beam a.

In the form illustrated in Fig. 4 the wire passes over or around the beam and is held fast at the angles with clamps or the like. This wire isso held by the intermeshing wave-shaped projections of the ceiling-slabs, as shown in Fig.- 3, that a wire at the' same time supports two slabs resting upon a crossbeam, and so relieves the pressure upon the said cross-beam, wherefore it would be of great advantage in the event of the weakening of a cross-beam in the case of fire or from other cause. Moreover, with this form of the slabs the joints are filled with gypsum,

cement, or the like, which completely sur` rounds and embeds the wire e. One can, moreover, in addition to the special groove for the cross-beams, provide a special groove for the wire, so Vthat the slab will have the sectional shape illustrated in Fig. 5. The iioor to be secured above the ceiling can be of any desired construction. Y f

What I claim, and desire to secure by Letters Patent, is;

l. In a floor or ceiling, supporting-beams, cross-beams supported thereby and slabs having intermeshing edges resting upon the cross-beams and extending in the same generalvdirection.

2. In a floor or ceiling, supporting-beams,

cross-beams secured to the under side there- IOO of, and slabs having intermeshing edges resting upon the cross-beams and breaking joints therewith.

3. In a floor or ceiling, supporting-beams, cross-beams supported thereby, and slabs having intermeshing escalloped edges resting upon the cross beams and breaking joints therewith.

4. In a floor or ceiling, supporting-beams, cross-beams secured to the under side thereof, and slabs resting upon the cross-beams and breaking joints therewith, the slabs having escalloped edges adapted to intermesh and being undercut at the edge to form the half of a groove for the reception of the crossbeams.

5. In a floor or ceiling, supporting-beams, cross-beams secured to the under side thereof and slabs resting upon the cross-beams and breaking joints therewith, the slabs having escalloped edges adapted to intermesh and being undercut at the edge to form the half of a groove for the reception of the cross-beams.

6. In a Hoor or ceiling, supporting-beams, cross-beams secured to the under side thereof, wires secured to a fixed supportv and extending longitudinally of the upper side of the cross-beams, and slabs resting upon the cross-beams and wires.

7. In a iioor or ceiling', supporting-beams, cross-beams secured to the under side thereof, wires secured to the beams and extending longitudinally of the upper surface of the line of the uppersurface of the cross-beams,

slabs resting upon the cross-beams and breaking joints therewith, the slabs having their adjacent faces escalloped and intermeshing and their longitudinal edges undercut to form the half of grooves for the reception of the wires and cross-beams.

9. In a oor or ceiling, supporting-beams, cross-beams secured thereto, wires secured to the beams and extending longitudinally of the upper surface of the cross beams, hollow slabs extending longitudinallyT of the crossbeains and breaking joints therewith, each of the slabs having escalloped edges adapted to intermesh with those of the adjacent slab and having its longitudinal lower edges undercut to form the half of two grooves, one to receive the wire and one the cross-beams, and the spaces between adjacent slabs being filled with cement. f

In testimony whereof I aix my signature to this specification in the presence of two witnesses.

ADOLF PROBST. Witnesses:

ADoLF LEBHERS, ERNST ENTENMAN. 

